Improved Condensation of 2-pyridyllithium Intermediates with Aldehydes: Application for the Synthesis of 2-(polyhydroxyalkyl)pyridines
作者:Corinne Comoy、Julien Petrignet、Estelle Banaszak、Anthony Chartoire、Yves Fort
DOI:10.2174/157017809787003214
日期:2009.1.1
3-chloro-2-pyridinyl lithium condensation to aldehydes were envisioned de- pending on metallation conditions or condensation time and temperatures. The procedure was applied to various aromatic, aliphatic or functionalized aldehydes to afford a new and efficient access to 2-(polyhydroxyalkyl)pyridines. n Scheme 1. Selective functionalization of 3-chloropyridine induced by (n-BuLi/LiDMAE) superbase. In this previous